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Carb jetting.

Discussion in 'XJ Technical Chat' started by Xjcinci, Apr 8, 2016.

  1. Xjcinci

    Xjcinci New Member

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    So recently I picked up a 81'xj550 seca. The one in my profile pic. So I tore into the carbs and found stock jets ( to my surprise) the bike has a k&n air filter and a supertrapp 4 into1. Shouldn't have been rejected for the supertrapp?
     
    Xjcinci, Apr 8, 2016
    #1
  2. XJ550H

    XJ550H Well-Known Member Premium Member

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    supertrapp is a tunable exhaust standard type k&n filter oiled in the air box?
    you may be good or just buy the stock filter. could also be why the k&n is in there.
    only plug chops or color tune will tell for sure
     
    XJ550H, Apr 8, 2016
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  3. k-moe

    k-moe Pie, Bacon, Bourbon. Moderator Premium Member

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    ^ what he said. If it's the K&N in the airbox then just get a paper filter. The K&N makes the bike run lean, so replacing it will save you the cost of jets.
     
    k-moe, Apr 9, 2016
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